WO2015039941A1 - Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile - Google Patents

Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile Download PDF

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Publication number
WO2015039941A1
WO2015039941A1 PCT/EP2014/069305 EP2014069305W WO2015039941A1 WO 2015039941 A1 WO2015039941 A1 WO 2015039941A1 EP 2014069305 W EP2014069305 W EP 2014069305W WO 2015039941 A1 WO2015039941 A1 WO 2015039941A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic sensor
temperature
sensor
detected
motor vehicle
Prior art date
Application number
PCT/EP2014/069305
Other languages
German (de)
English (en)
Inventor
Michael Hallek
Michael Ludwig
Original Assignee
Valeo Schalter Und Sensoren Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Schalter Und Sensoren Gmbh filed Critical Valeo Schalter Und Sensoren Gmbh
Priority to CN201480051105.8A priority Critical patent/CN105556336A/zh
Priority to US15/021,714 priority patent/US10551487B2/en
Priority to EP14761995.1A priority patent/EP3047300B1/fr
Priority to KR1020167006974A priority patent/KR102202189B1/ko
Publication of WO2015039941A1 publication Critical patent/WO2015039941A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/87—Combinations of sonar systems
    • G01S15/876—Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S7/52006—Means for monitoring or calibrating with provision for compensating the effects of temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • G01S2007/52009—Means for monitoring or calibrating of sensor obstruction, e.g. dirt- or ice-coating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/932—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles for parking operations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/88—Sonar systems specially adapted for specific applications
    • G01S15/93—Sonar systems specially adapted for specific applications for anti-collision purposes
    • G01S15/931—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2015/937—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details
    • G01S2015/938—Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles sensor installation details in the bumper area

Definitions

  • the invention relates to a method for detecting a blocked state of an ultrasonic sensor of a motor vehicle, wherein an actual value of at least one
  • Vibration parameters of the ultrasonic sensor is detected and compared to detect the blocked state by means of an evaluation device with a reference value.
  • the invention also relates to an ultrasonic sensor device for a motor vehicle, which is designed to carry out such a method, and to a motor vehicle having such an ultrasonic sensor device.
  • ultrasonic sensors are covered with additional mass, this should be reliably detected.
  • the known methods for detecting ice or dirt are fundamentally based on the evaluation of side effects caused by the additional mass on the ultrasonic sensor. Thus, for example, the so-called settling time of the membrane of the.
  • Ultrasonic sensor influences or it is a virtual echo or a false echo generated, which can be detected by appropriate evaluation of the electrical received signal of the ultrasonic sensor.
  • the additional mass neither leads to a change in the decay time of the membrane nor causes additional echoes.
  • the blocked state of the ultrasonic sensor can not be detected, and the sensor is no longer able to detect a real object or reliably detect the distances. To the blocked state of the ultrasonic sensor even in such unfavorable
  • Resonant frequency of the ultrasonic sensor measured and compared with stored reference values. This method is based on the fact that the resonant frequency of the ultrasonic sensor is a direct indicator of a fouling, ice or snow layer, since this additional layer affects the mass of the harmonic oscillation. Namely, the oscillating mass and consequently also the resonant frequency of the sensor change with the additional mass of the dirt or the ice or snow layer.
  • DE 10 2010 021 960 A1 describes a method in which
  • Detection of the blocked state of an ultrasonic sensor is evaluated the decay time of the membrane over several measuring cycles of the ultrasonic sensor.
  • a further plausibility check may be that the detection of the blocked state takes place only on condition that a temperature of the surroundings of the motor vehicle is below a predetermined limit value.
  • This Limit value can be, for example, ⁇ ' ⁇ .
  • Detection of the blocked state can be reduced.
  • This object is achieved by a method by a
  • An inventive method is used to detect a blocked state of an ultrasonic sensor of a motor vehicle.
  • the blocked state is understood to mean a state covered by an additional mass, such as, in particular, a state of the ultrasound sensor hidden by ice and / or snow and / or dirt.
  • An actual value of at least one vibration parameter of the ultrasonic sensor is detected, such as the actual value of a resonance frequency and / or the actual value of a
  • a current temperature is detected by means of a temperature detection device of the motor vehicle, which is exposed to the ultrasonic sensor, and the reference value determined by the evaluation depending on the current temperature and thus set or adjusted during operation.
  • the invention is based on the finding that the blocked state of a
  • Ultrasound sensor can be detected basically reliable by evaluating a vibration parameter and in particular the resonant frequency of the sensor is a reliable measure of additional mass on the membrane, however, that in the prior art, the evaluation of the resonant frequency in some situations only leads to insufficient results. Another finding is that the inadequate results are due to the fact that there are also additional factors affecting the resonant frequency and others
  • the reference value with which the current actual value of the vibration parameter of the ultrasonic sensor is compared set in dependence on the current temperature to which the ultrasonic sensor is currently exposed. In this way, the blocked state of the ultrasonic sensor can be detected particularly reliable, and it can optionally appropriate security measures are taken, such as
  • the ultrasonic sensor may be a sensor whose diaphragm is arranged in a continuous recess of a trim part, for example a bumper, of the motor vehicle and is thus visible from outside the motor vehicle.
  • the ultrasonic sensor is arranged on a rear side of the trim part in such a way that the membrane rests against the rear side of the trim part and transmits and receives the ultrasonic signals through the material of the trim part.
  • the evaluation device is preferably a central control device, by means of which a plurality of ultrasonic sensors of the motor vehicle are controlled.
  • This control unit can serve, for example, for controlling a group of ultrasonic sensors, which are arranged on a bumper. It can also be a
  • Act control unit which is common to all ultrasonic sensors, which are arranged on the front and on the rear bumper.
  • Temperature detection device may now be provided different embodiments: On the one hand, the current temperature can be measured directly on and / or in the sensor. This means that the current temperature by means of a on and / or in the ultrasonic sensor or on and / or in a housing of the ultrasonic sensor
  • This embodiment is based on the knowledge that the measurement of a
  • Temperature reflects which the sensor is exposed. This is very often the case when a sensor is placed near a source of heat, such as very close to an exhaust system. The temperature directly at the sensor then differs significantly from the ambient temperature of the motor vehicle. The detection of the temperature directly on and / or in the ultrasonic sensor thus enables a very precise determination of the reference value and consequently a particular
  • the temperature can also be a current ambient temperature of the ultrasonic sensor by means of a in the area or in the immediate vicinity of the
  • the actual value of a resonance frequency of the ultrasonic sensor is detected as a vibration parameter.
  • a desired value of the resonance frequency can be determined as a function of the current temperature.
  • a theoretical resonance frequency (nominal value of the resonance frequency) is determined on the basis of the measured temperature.
  • Dependence of the theoretical resonance frequency on the measured temperature can be stored here, for example, as a formula or in the form of a look-up table in the evaluation device and then serves to determine the nominal value of the resonance frequency.
  • the setpoint value of the resonance frequency is thus compared with the actually measured actual value of the resonance frequency as oscillation parameter.
  • the resonant frequency is preferably a resonant frequency of the membrane when the membrane is decoupled, ie immediately after the diaphragm has been excited, for example by means of a piezoelectric element.
  • the evaluation of the resonance frequency or the natural frequency has proven to be particularly advantageous with regard to to the detection of an additional mass on the membrane and thus with respect to the detection of a hidden state of the ultrasonic sensor proven.
  • Vibration parameter of the ultrasonic sensor is used a decay time of the membrane.
  • the actual value of the decay time is detected as a vibration parameter, and as the reference value for the decay time, a desired value of the decay time is determined as a function of the current temperature.
  • the decay time is understood as meaning a post-oscillation time duration for which a ringing of the membrane takes place following excitation. It has been found that also this settling time depends on the
  • Temperature of the ultrasonic sensor may change and is also influenced by an additional mass on the membrane. This embodiment also makes it possible - possibly in conjunction with the evaluation of the resonant frequency - reliable conclusions about the blocked or hidden state of the ultrasonic sensor.
  • a vibration amplitude of the membrane is used as the vibration parameter of the ultrasonic sensor.
  • the actual value of the amplitude is detected as a vibration parameter, and as a reference value for the amplitude, a desired value of the amplitude is determined as a function of the current temperature.
  • the amplitude of oscillation is preferably an amplitude of the membrane oscillation when the diaphragm swings out, i. immediately following excitation of the membrane
  • Both the measurement of the vibration parameter and the detection of the sensor temperature can thus be repeated, for example, periodically performed.
  • a current reference value for the comparison with the actual value of the vibration parameter can be determined in each case.
  • an average value is determined from comparison results, such as from a predetermined number of comparisons, and this mean value is then evaluated to detect the blocked state.
  • an average over several measurements is calculated.
  • Sensor temperature can be filtered out. Such fluctuations of
  • Resonance frequency can, for example, due to a very short-lasting Pollution occur.
  • Such short soiling may be, for example, pebbles, leaves or other material, which falls down immediately after impact again or is blown away by the wind.
  • Ultrasonic sensors are determined. For example, a deviation or a difference between the actual value of the vibration parameter on the one hand and the current reference value on the other hand can be determined and used as a direct indicator of the type of blocking and / or the strength of the blocking.
  • This embodiment proves to be particularly advantageous if several functionalities in the motor vehicle are provided on the basis of measured values of the ultrasonic sensor or these measured values are used by a plurality of driver assistance systems, such as a parking aid, an automatic brake assist system and the like. Depending on the detected type and / or the extent of the blocking then, for example, individual of the functionalities or the assistance systems can be switched off.
  • This may also be such that, depending on the comparison, and in particular depending on the determined extent and / or the type of blocking, a reduction caused by the blocking of a detection range, in particular the range, of the ultrasonic sensor relative to a reference detection range of a non-blocked ultrasonic sensor is determined. Is the reduction of
  • Driver assistance systems or functionalities in the motor vehicle can still be used in this current detection range of the ultrasonic sensor and which not.
  • an assessment for each driver assistance system can be carried out separately or individually, and individual driver assistance systems can be used.
  • Detection range or the range of the ultrasonic sensor can be accepted for example for the functionality of a parking aid, but not for the
  • Driver assistance system which is used for automatic braking of the motor vehicle after the detection of a collision hazard, or for an automatic
  • Parking assistance system which is used to measure parking spaces and for automatic parking Calculation of a parking trajectory for the motor vehicle is used. It can too
  • At least two ultrasonic sensors of the motor vehicle are each checked for the blocked state.
  • any differences in the temperature of the ultrasonic sensors is in one
  • Ultrasonic sensor is detected and the reference value is determined separately for each ultrasonic sensor depending on the respective temperature during operation.
  • a temperature gradient between a plurality of ultrasonic sensors can thus be considered individually, because for each ultrasonic sensor, the temperature is measured, which is the respective
  • the invention additionally relates to an ultrasonic sensor device for a motor vehicle, comprising an ultrasound sensor and an evaluation device which detects an actual value of at least one vibration parameter of the ultrasound sensor, compares it with a reference value and, depending on the comparison, detects a blocked state of the ultrasound sensor.
  • the evaluation device can determine the reference value as a function of a detected current temperature to which the ultrasonic sensor is exposed.
  • a motor vehicle according to the invention in particular a passenger car, comprises an ultrasonic sensor device according to the invention.
  • Embodiments and their advantages apply correspondingly to the motor vehicle according to the invention and the ultrasonic sensor device according to the invention.
  • FIG. 1 is a schematic representation of a motor vehicle with a
  • Fig. 2 shows a dependence of a resonance frequency of a temperature of
  • Ultrasonic sensor for two different types of installation of the ultrasonic sensor on the motor vehicle
  • the motor vehicle 1 is for example a passenger car.
  • the motor vehicle 1 comprises an ultrasonic sensor device 2, which has a plurality of ultrasonic sensors 3 and an electronic evaluation device 4, for example in the form of a control device.
  • Ultrasonic sensors 3 are shown in FIG. 1 by way of example only and may vary depending on the embodiment. In the embodiment, a plurality of
  • Ultrasonic sensors 3 arranged on a front bumper 5 of the motor vehicle 1; a plurality of ultrasonic sensors 3 are also arranged on a rear bumper 6 of the motor vehicle 1.
  • two alternative embodiments may be provided. For one thing, the
  • Ultrasonic sensors 3 are each arranged in a recess of the respective bumper 5, 6, so that the membranes of the respective ultrasonic sensors 3 are disposed within the respective continuous recess of the bumper 5, 6.
  • a concealed installation of the ultrasonic sensors 3 behind the respective bumper 5, 6 may be provided, so that the membranes of
  • Ultrasonic sensors 3 at the back of the respective bumper 5, 6 abut and send the ultrasonic signals through the material of the bumper 5, 6 through and receive.
  • the ultrasonic sensors 3 are each for detecting distances to in one
  • driver assistance systems 7a to 7x may be provided, which are designed to provide different functionalities in the motor vehicle 1, based on the measured distances of the ultrasonic sensors 3.
  • the different driver assistance systems 7a to 7x are shown as separate components ; However, several functionalities can also be provided by a common control unit, which then assumes the function of several driver assistance systems.
  • driver assistance systems 7a to 7x for example, the following systems can be provided: a parking assistance system, in which the measured distances are emitted acoustically and / or optically
  • an automatic parking assistance system for automatic parking, an automatic brake assist system, which for autonomous braking of the motor vehicle 1 due to a detected based on the measured values of the ultrasonic sensors 3
  • Risk of collision a system for blind spot monitoring, a system for
  • the evaluation device 4 can also check separately for each ultrasonic sensor 3, whether this ultrasonic sensor 3 is covered by an additional mass, such as dirt and / or ice and / or snow, and thus blocked and prevented in the provision of its function.
  • a temperature detection device 8 is provided in each ultrasonic sensor 3, which is designed to detect the current temperature T, to which the respective ultrasonic sensor 3 is exposed. In other words, the temperature detection device 8 detects the respective ones
  • each temperature detection device 8 comprises a
  • Temperature sensor which in and / or on the housing of the respective
  • Ultrasonic sensor 3 or in the immediate vicinity of the ultrasonic sensor. 3
  • Ultrasonic sensors 3 are transmitted to the central evaluation device 4 and evaluated by them.
  • a current resonance frequency fR is detected and transmitted to the evaluation device 4.
  • the resonant frequency fR is the natural frequency of the respective membrane, which varies depending on the actual vibration mass and immediately after the membrane is excited is measured, ie when swinging the membrane.
  • the resonant frequency fR is therefore a decay frequency.
  • Resonance frequency fR then determines the evaluation device 4 separately for each
  • Ultrasonic sensor 3 whether this ultrasonic sensor 3 is currently blocked or not.
  • Resonance frequency fR is limited as a vibration parameter. It is also possible to use other oscillation parameters which are correlated with the oscillation mass, such as, for example, the so-called decay time and / or the so-called decay time
  • the method starts in a first step S1, in which the evaluation device 4 displays the current temperature T and the current temperature
  • Resonance frequency fR of the ultrasonic sensor 3 receives.
  • the evaluation device 4 determines a reference value RV as a function of the current temperature T.
  • the temperature-dependent reference value RV is a theoretical resonance frequency of the ultrasonic sensor 3, which is
  • Resonant frequency and thus the reference value RV of the current temperature T is shown in Fig. 2, wherein the room temperature is denoted by RT. 2, two courses are shown, namely a first linear dependency 9 for the concealed installation of the ultrasonic sensor 3 behind the bumper 5, 6 and a second linear dependency 10 for the conventional installation of the ultrasonic sensor 3 in a continuous recess of the bumper 5, 6.
  • the dependence of the theoretical resonance frequency RV on the temperature T is particularly significant when the
  • Ultrasonic sensor 3 with its membrane hidden behind the bumper 5, 6 is mounted, in particular a bumper made of plastic.
  • a deviation ⁇ of the measured actual resonance frequency fR from the reference value RV is determined.
  • deviation ⁇ can be calculated, for example, a difference and then into
  • Ratio be set with the reference value RV, so that the deviation ⁇ is calculated as a percentage.
  • the evaluation device 4 can check whether a sufficient number of measurements or deviations ⁇ is present or not. If this is not the case, the method returns to step S1. Otherwise, according to step S5, a mean value AV of the deviations ⁇ is calculated from a plurality of deviations ⁇ and thus based on a plurality of measurements. This mean value AV then serves to definitively judge whether the ultrasonic sensor 3 is blocked or not.
  • a binary decision can be made first, whether the
  • Ultrasonic sensor 3 is blocked or not. This can be done, for example, in such a way that it is checked by the evaluation device 4 whether or not the mean value ⁇ V lies within a predetermined value range around the value "0." If the mean value AV in this value range is around the zero value, the ultrasonic sensor 3 is not If the mean AV is outside this range, it is assumed that the ultrasound sensor 3 is blocked, and depending on the mean value AV, a degree and / or a kind of jamming can be further determined and it can
  • Detection range of the ultrasonic sensor 3 are closed back.
  • An example shows the following table:
  • an evaluation of the reduction of the detection range for each driver assistance system 7a to 7x can be performed separately. It can be decided separately, for example, for each driver assistance system 7a to 7x, whether issued a warning message and / or the respective

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

L'invention concerne un procédé permettant de détecter un état de blocage d'un capteur d'ultrasons (3) d'un véhicule automobile (1). Ledit procédé consiste à enregistrer une valeur réelle d'au moins un paramètre de vibration (fR) du capteur d'ultrasons (3) et à la comparer à une valeur de référence au moyen d'un dispositif d'évaluation (4) pour détecter l'état de blocage. Un dispositif d'enregistrement de température (8) permet d'enregistrer une température instantanée (T), à laquelle est exposé le capteur d'ultrasons (3), et le dispositif d'évaluation (4) permet de déterminer la valeur de référence en fonction de la température instantanée (T).
PCT/EP2014/069305 2013-09-17 2014-09-10 Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile WO2015039941A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201480051105.8A CN105556336A (zh) 2013-09-17 2014-09-10 用于识别超声传感器的阻挡状态的方法、超声传感器装置和机动车辆
US15/021,714 US10551487B2 (en) 2013-09-17 2014-09-10 Method for detecting a blocked state of an ultrasonic sensor, ultrasonic sensor device, and motor vehicle
EP14761995.1A EP3047300B1 (fr) 2013-09-17 2014-09-10 Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile
KR1020167006974A KR102202189B1 (ko) 2013-09-17 2014-09-10 초음파 센서의 막힌 상태 검출 방법, 초음파 센서 장치, 및 자동차

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013015410.3A DE102013015410A1 (de) 2013-09-17 2013-09-17 Verfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors Ultraschallsensorvorrichtung und Kraftfahrzeug
DE102013015410.3 2013-09-17

Publications (1)

Publication Number Publication Date
WO2015039941A1 true WO2015039941A1 (fr) 2015-03-26

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PCT/EP2014/069305 WO2015039941A1 (fr) 2013-09-17 2014-09-10 Procédé permettant de détecter un état de blocage d'un capteur d'ultrasons, capteur d'ultrasons et véhicule automobile

Country Status (6)

Country Link
US (1) US10551487B2 (fr)
EP (1) EP3047300B1 (fr)
KR (1) KR102202189B1 (fr)
CN (1) CN105556336A (fr)
DE (1) DE102013015410A1 (fr)
WO (1) WO2015039941A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013021328A1 (de) * 2013-12-17 2015-06-18 Valeo Schalter Und Sensoren Gmbh Ultraschallsensoreinrichtung für ein Kraftfahrzeug, Kraftfahrzeug und entsprechendes Verfahren
US10952282B2 (en) * 2016-05-27 2021-03-16 Ford Global Technologies, Llc Vehicle sensor cold mitigation
DE102017208663A1 (de) 2016-06-09 2017-12-14 Conti Temic Microelectronic Gmbh Umgebungserfassende Vorrichtung sowie Kraftfahrzeug mit einer solchen umgebungserfassenden Vorrichtung
US10209709B2 (en) * 2016-08-15 2019-02-19 Ford Global Technologies, Llc LIDAR sensor frost detection
JP6544326B2 (ja) * 2016-09-14 2019-07-17 株式会社Ｓｏｋｅｎ 物体検知装置
DE102016122108A1 (de) 2016-11-17 2018-05-17 Valeo Schalter Und Sensoren Gmbh Erkennung der Blockierung eines Ultraschallsensors zur Detektion eines Körperschallsignals mittels Schwingungsenergiespeicher
DE102016122109A1 (de) 2016-11-17 2018-05-17 Valeo Schalter Und Sensoren Gmbh Erkennung der Blockierung eines Ultraschallsensors zur Detektion eines Körperschallsignals mittels Luftschallreflexion
DE102016224928A1 (de) * 2016-12-14 2018-06-14 Robert Bosch Gmbh Verfahren zum Betrieb eines Ultraschallsensors
JP6702442B2 (ja) * 2017-01-25 2020-06-03 株式会社村田製作所 超音波装置
DE102017209823A1 (de) * 2017-06-09 2018-12-13 Robert Bosch Gmbh Ultraschallsensor
DE102018105267B3 (de) 2018-03-07 2019-04-25 Valeo Schalter Und Sensoren Gmbh Dämpfungselement für einen Ultraschallsensor
DE102018205048A1 (de) 2018-04-04 2019-10-10 Robert Bosch Gmbh Verfahren und Vorrichtung zur Funktionsüberwachung von Ultraschallsensoren
DE102018124024A1 (de) * 2018-09-28 2020-04-02 Valeo Schalter Und Sensoren Gmbh Verfahren zum Betreiben eines Ultraschallsensors eines Fahrzeugs mit reduzierter Diagnose in einem Messbetrieb des Ultraschallsensors sowie Ultraschallsensorvorrichtung
DE102018129044A1 (de) * 2018-11-19 2020-05-20 Valeo Schalter Und Sensoren Gmbh Verfahren und Analysesystem zum Bestimmen eines Zustands einer Membran eines Ultraschallsensors
FR3115246B1 (fr) * 2020-10-20 2022-10-28 Renault Sas Procédé de gestion de l’énergie thermique dissipée par une pluralité d’indicateurs lumineux d’un tableau de bord pour un véhicule.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020023498A1 (en) * 2000-08-31 2002-02-28 Takeo Tsuzuki Obstacle detecting system having snow detecting function
US20070157728A1 (en) * 2006-01-06 2007-07-12 Denso Corporation Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature
DE102009040992A1 (de) * 2009-09-10 2011-03-24 Valeo Schalter Und Sensoren Gmbh Verfahren zur Vereisungs- und Verschmutzungserkennung von Ultraschallsensoren

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7164117B2 (en) * 1992-05-05 2007-01-16 Automotive Technologies International, Inc. Vehicular restraint system control system and method using multiple optical imagers
US7663502B2 (en) * 1992-05-05 2010-02-16 Intelligent Technologies International, Inc. Asset system control arrangement and method
CH656015A5 (en) * 1984-02-27 1986-05-30 Vibro Meter Ag Method of detecting a risk of freezing, warning device for implementing the method and its use
US6738697B2 (en) * 1995-06-07 2004-05-18 Automotive Technologies International Inc. Telematics system for vehicle diagnostics
US6517107B2 (en) * 1998-06-09 2003-02-11 Automotive Technologies International, Inc. Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients
US6856876B2 (en) * 1998-06-09 2005-02-15 Automotive Technologies International, Inc. Methods for controlling a system in a vehicle using a transmitting/receiving transducer and/or while compensating for thermal gradients
US9102220B2 (en) * 1992-05-05 2015-08-11 American Vehicular Sciences Llc Vehicular crash notification system
DE69406048T2 (de) * 1993-05-24 1998-04-23 Asulab Sa Ultraschalldetektionsgerät insbesondere für eine automatisch gesteuerte Windschutzreinigungsanlage
US7421321B2 (en) * 1995-06-07 2008-09-02 Automotive Technologies International, Inc. System for obtaining vehicular information
US20050192727A1 (en) * 1994-05-09 2005-09-01 Automotive Technologies International Inc. Sensor Assemblies
CH690936A5 (fr) * 1996-12-19 2001-02-28 Asulab Sa Dispositif de détection ultra-sonore, notamment pour un système de nettoyage de pare-brise à commande automatique.
JP3587147B2 (ja) * 2000-08-31 2004-11-10 株式会社デンソー 車両用障害物検知装置
JP2002131428A (ja) * 2000-10-25 2002-05-09 Mitsubishi Electric Corp 超音波障害物検出装置
DE10247971A1 (de) 2002-10-15 2004-05-06 Valeo Schalter Und Sensoren Gmbh System zur Überwachung des Nahbereichs eines Kraftfahrzeuges mit Störungserkennung und Verfahren zur Ermittlung der Störungsfreiheit eines derartigen Systems
JP4192672B2 (ja) * 2003-05-16 2008-12-10 株式会社日本自動車部品総合研究所 超音波センサ
JP2005217755A (ja) * 2004-01-29 2005-08-11 Mitsubishi Electric Corp 超音波センサ装置
DE102005038649B4 (de) * 2005-08-16 2016-01-28 Valeo Schalter Und Sensoren Gmbh Verfahren und System zum Betreiben eines Ultraschallwandlers
DE102005042853A1 (de) * 2005-09-09 2007-03-22 Hella Kgaa Hueck & Co. Verfahren und Vorrichtung zur Ermittlung der Geometrie und Position einer Parklücke
CN101251600A (zh) * 2007-07-30 2008-08-27 陈武强 一种汽车防撞示警装置及超声波装置
DE102007059908A1 (de) * 2007-12-12 2009-06-18 Robert Bosch Gmbh Sensorfunktion zur Ansteuerung mit variabler Sendefrequenz zum Zwecke der Verschmutzungserkennung
DE102010021960B4 (de) 2010-05-28 2021-05-06 Valeo Schalter Und Sensoren Gmbh Verrfahren zum Erkennen eines blockierten Zustands eines Ultraschallsensors eines Kraftfahrzeugs, Fahrerassistenzeinrichtung und Kraftfahrzeug
US8656781B2 (en) * 2010-10-18 2014-02-25 Ford Global Technologies, Llc Method and system for compensation of ultrasonic sensor
DE102011016946A1 (de) * 2011-04-13 2012-10-18 Volkswagen Ag Verfahren zum Festlegen einer Frequenz für ein Anregungssignal eines Ultraschallsensors, Fahrerassistenzeinrichtung und Kraftfahrzeug
DE102012200230A1 (de) * 2012-01-10 2013-07-11 Robert Bosch Gmbh Vorrichtung und Verfahren zur Erfassung der Umgebung eines Fahrzeugs
DE102012002979A1 (de) * 2012-02-15 2013-08-22 Valeo Schalter Und Sensoren Gmbh Fahrerassistenzeinrichtung mit einem Ultraschallsensor, Kraftfahrzeug und Verfahren zum Betreiben eines Ultraschallsensors
CN202502247U (zh) * 2012-03-16 2012-10-24 中国石油集团长城钻探工程有限公司录井公司 超声波测距传感器检测装置
CN202975323U (zh) * 2012-11-02 2013-06-05 长安大学 汽车行驶追尾预警系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020023498A1 (en) * 2000-08-31 2002-02-28 Takeo Tsuzuki Obstacle detecting system having snow detecting function
US20070157728A1 (en) * 2006-01-06 2007-07-12 Denso Corporation Ultrasonic sensor transmitting and receiving ultrasonic frequencies adjusted according to temperature
DE102009040992A1 (de) * 2009-09-10 2011-03-24 Valeo Schalter Und Sensoren Gmbh Verfahren zur Vereisungs- und Verschmutzungserkennung von Ultraschallsensoren

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